Kérastase never disappoints, in my opinion, and this product fits right in with my high expectations. After washing, I took a nickel-sized amount in my palms and rubbed it through the ends of my hair, working back towards the roots (but not above ear-level), and then used a blow-dryer as usual. My hair looked model perfect, straight, and with fewer flyaways than usual. The smell is an added treat all day long — every time you toss your gorgeous hair. I definitely recommend it.

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5 years

I'm desperate to get my hands on some Kerastase Resistance Substance Constructive Leave-in Conditioner but its been discontinued in the UK - can you still buy it in the US, if so, I'd be so grateful to know where. Many thanks.

I have been using it for few months now, I love it, especially when you are going to flat iron your hair, I have less split ends now. I am also using Bumble and Bumble Gentle shampoo and Super Rich conditioner, they work MIRACLES on hair too!

Haven't used Kerastase for awhile. Now that you mention it . . I remember loving it for a very much needed hair repair. My hair had been damaged by a sloppy hair stylist who burned my hair with color.
Another one helped me out with Kerastase products and a good cut!!